document.writeln("<link rel=\'stylesheet\' href=\'https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css\'>");
document.writeln("<script src=\'https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js\'></script>");
document.writeln("<script src=\'https://cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js\'></script>");
document.writeln("");
document.writeln("<header id=\'header\'>");
document.writeln("    ");
document.writeln("    <nav class=\'navbar navbar-default\' role=\'navigation\'>");
document.writeln("        <div class=\'container-fluid\'> ");
document.writeln("        <div class=\'navbar-header\'>");
document.writeln("            <button type=\'button\' class=\'navbar-toggle\' data-toggle=\'collapse\'");
document.writeln("                    data-target=\'#example-navbar-collapse\'>");
document.writeln("                <span class=\'sr-only\'>切换导航</span>");
document.writeln("                <span class=\'icon-bar\'></span>");
document.writeln("                <span class=\'icon-bar\'></span>");
document.writeln("                <span class=\'icon-bar\'></span>");
document.writeln("            </button>");
document.writeln("            <a class=\'navbar-brand\' href=\'#\'>火车订票系统</a>");
document.writeln("        </div>");
document.writeln("        <div class=\'collapse navbar-collapse\' id=\'example-navbar-collapse\'>");
document.writeln("            <ul class=\'nav navbar-nav\'>");
document.writeln("                <!-- class = active 是说明被选中了 -->");
document.writeln("                ");
document.writeln("                <li><a href=\'booking.html\'>首页</a></li>");
document.writeln("                <li><a href=\'#\' onclick=\'alert(\'当前功能还未开发灯\')\'>车票</a></li>");
document.writeln("                <li><a href=\'#\' onclick=\'alert(\'当前功能还未开发灯\')\'>出行指南</a></li>");
document.writeln("                <li><a href=\'#\' onclick=\'alert(\'当前功能还未开发灯\')\'>信息查询</a></li>");
document.writeln("                <li><a href=\'#\' onclick=\'alert(\'当前功能还未开发灯\')\'>商旅服务</a></li>");
document.writeln("                <li><a href=\'#\' onclick=\'alert(\'当前功能还未开发灯\')\'>线上订餐</a></li>");
document.writeln("                <li><a href=\'orderList.html\'>订单列表</a></li> ");
document.writeln("                <li><a href=\'login.html\'>注销</a></li> ");
document.writeln("            </ul>");
document.writeln("        </div>");
document.writeln("        </div>");
document.writeln("    </nav>");
document.writeln("</header>");
document.writeln("<script>");
document.writeln("");
document.writeln("</script>");
document.writeln("");